Flanging implement.



PATBNTED AUG. 16, 1904. J. P. SNEDDON. PLANGING IMPLEMENT.

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wrmiz I No. 767,602. Patented August 16, 1904.

UNITED STATES PATENT OFFICE.

JAMES P. SNEDDON, OE BARBERTON, OHIO, ASSIGNOR TO THE STERLING 00., OF CHICAGO, ILLINOIS, A CORPORATIONOF NEW JERSEY.

FLANGING IMPLEMENT.

SPECIFICATION forming part of Letters Patent No. 767,602, dated August 16, 1904.

Original application filed February 14, 1903, Serial No. 143,352. Divided and this application filed October '7, 1903. Serial No. 176,039. (No model.)

To whom it y be inclined from the perpendicular to the axis Be it known that I, JAMES P. SNEDDON, a of the header. 5 resident of Barberton, in the county of Sum- The object of my invention is to provide a mit and State of Ohio, have invented a new flanging implement or projectile for use with and useful Improvement in Flanging Implea suitable press and whereby the flanges can ments; and I do hereby declare the following be formed at the necessary incline from the to beafull,clear,and exact description thereof. perpendicular with ease and accuracy. 55

My invention relates to apparatus for flang- In the accompanying drawings, Figure 1 is ing the metal surrounding holes in the walls a sectional elevation of a portion of a flangof wrought-metal boiler-headers'or other tu-' ing-press and aheader, showing my invention bular articles; and its object is to provide an applied thereto; and Fig. 2 is a side view, on implement. for insertion in the tube and adaptan enlarged scale, of one of the fianging imple- 60 ed to be forced through openings in the walls ments. of the tube and which is so constructed as to In use preferably all of the holes in one accurately form flanges, which project at a face of the header will be simultaneously slight angle from the perpendicular to the flanged, so as to do away with unnecessary reaXis of the tube or other article being flanged. heatings and handlings. Consequently as 5 In certain types of water-tube boilers the many implements will be used as there are tubes are connected at either their front ends holes in one of the header-walls, and said imor both at their front and rear ends to vertical plements will be used with a gang-press havmembers, technically known as headers, ing as many plungers as there are implements and which communicate at their upper ends and having a bed-die or anvil provided with 7 with the steam and water drum. In marine as many recesses as there are plungers. The boilers where lightness is essential these headinvention has been so illustrated in the drawers are formed of wrought metal. The tubes ings.

are inserted in holes through the rear walls In said drawings the anvil or supporting-die of the headers, and corresponding holes are upon which the header is placed is representformed in the front walls to permit either of ed at 1. This is provided with a series of the cleaning of the tubes in some types of holes or recessesQ in the face thereof, said re- 3 boilers or their removal in other types of boilcesses in number, dimensions, and relative ers, such as Niclausse boilers. The walls of spacing corresponding to the number, diamthe headers are formed of comparatively thin eter. and relative positions of the water-tubes plate metal, so that it is necessary to form required for the particular boiler for which flanges around the holes in order to provide the header is designed. Around the upper 35 proper seats for the water-tubes or to provide ends of these holes are annular recesses 3,

a suitable seat for the handholds which close which form, in effect, die-cavities into which the openings in the front walls. These flanges the flanges are turned and by which they are 5 ordinarily are turned outwardly and are shaped to some extent. Above the anvil or formed by inserting a suitable tool or impledie 1 is a suitable support or cross-head4, car- 4 ment into the header and forcing the same rying a series of plungers or pins 5, correthrough the holes in the header-walls while sponding in number, dimension, and relative the latter is supported upon asuitable bed-die spacing to the holes in the anvil. In order 9 or anvil which has therein a recess into which to give the flanges of the header the proper the flanges turn. In most water-tube boilers inclination to the perpendicular, the upper 45 the tubes are inclined from the horizontal, face of the anvil or die 1 is inclined, the parand the headers generally are placed approxiticular inclination shown in the drawings bemately in a perpendicular position, so that the ing an angle of one to ten to the horizontal; but flanges forming the seats for the tubes must this of course will vary with different headcrs. As a consequence when the projectiles are forced through the holes in a perpendicular direction the flanges will be given the proper inclination. The pins or plungers 5 preferably will all beof the same length, and the lower face of the support or cross-head 4L is inclined in the same direction and to the same degree as the anvil 1. The same result, however, could be secured by making the lowerface of the cross-head horizontal and having pins of varying lengths. 'lhepressherein shown and described, however, is not claimed in this application, but is claimed in my application filed February 1 1, 1903, Serial No. 143.352, of which application the present is a division.

For flanging tubular articles the flanged implements or projectiles must be independent of the plungers or pins 5 in order that said implements can be inserted in the header 9 or other tubular article and forced through the holes in the lower wall thereof. Various forms of such implements or projectiles may beused, such as a sphere or semisphere, as shown in my patent granted February 11, 1902, No. 693,177, or a section of an ellipse, section of a cone,or any other preferred shape. A preferred form of suchimplement is shown in Fig. 2, the same having a body portion 10, which is a modified inverted truncated cone of circular outline in horizontal section and having two of its opposite curved or flaring sides struck about different centers or about centers at different heights or othewise, so formed that corresponding portions of such opposite side faces at their lower portions are at different heights, thus forming a supporting-face 11 at the bottom of the implement which is inclined with reference to the perpendicular axis of the implement, the inclination corresponding to the angle to be given to the flanges and in the particular implement shown being at an angle of one to ten to its vertical axis. This implement has a countersunk conical or concave depression 12 in its upper face, and the lower end of each plunger or pin 5 is conical or convex, so that in operation the conical end of the pin will slide down into the countersunk recesses 12 of the implement and center itself therein. As a consequence the pins will force the implements perpendicularly and centrally through the holes in the header-walls and throw out flanges uniformly all around said holes.

Preferably the flanging implement will be provided on its lower face with a teat or projection 1 L, adapted to fit in the hole over which the implement is placed in order to properly position the same and to initially guide said implement in its downward movement. The

implements are also provided in their sides with holes 15, into which can be inserted the end of a rod 16, by means of which they can be conveniently inserted in the header and placed over their respective holes.

WVhile I have shown and described my invention particularly as adapted for flanging holes in wrought-metal headers, it is to be understood that it is not limited thereto, but that it is equally as well adapted for flanging holes in other tubular articles.

It is obvious that certain features of the in vention are applicable to flanging holes in tubular articles which are not supported in an inclined position and that the particular form of implement is of value in flanging flat plates or any other articles when supported in an inclined position equally as well as for flanging tubular headers when supported in a similar position.

W hat I claim is 1. A flanging implement comprising a body of the form of an inverted modified truncated cone having a concave depression in its upper face adapted to center a plunger or punch.

2. A flanging implement comprising a body of the form of an inverted modified truncated cone having a teat or projection on its lower face and a concave depression in its upper face adapted to center a plunger or punch.

3. A flanging implement comprising a body of circular outline in horizontal section and having side faces flaring upwardly from its lower end, two opposite side faces having corresponding portions at the lower end of the implement at different heights, thereby forming a supporting-face at the bottom of the implement which is inclined with reference to its perpendicular axis.

4. A flanging implement comprising a body of circular outline in horizontal section and having side faces flaring upwardly from its lower end, two opposite side faces having corresponding portions at the lower end of the implement at different heights, thereby forming a supporting-face at the bottom of the implement whichis inclined withreference to its perpendicular axis, and a teat or projection on the lower face of said implement.

5. A flanging implement comprising a body of circular outline in horizontal section and having side faces flaring upwardly from its lower end, two opposite side faces having corresponding portions at the lower end of the implement at different heights, thereby forming a supporting-face at the bottom of the implement which is inclined with reference to its perpendicular axis, and a punch-centering face on the upper side of said implement.

6. A Hanging implement comprising a body of circular outline in horizontal section and having curved side faces flaring upwardly from its lower end, the opposite side faces having corresponding portions at the lower end of said implement at different heights, thereby forming a supporting-face which is inclined with reference to the perpendicular axis of the implement.

7. A flanging implement comprising a body of circular outline in horizontal section and on the lower face of said implement.

8. A flanging implement comprising a body portion of the desired shape provided With a punch-centeringface on its upper side and having a hole in one side thereof adapted for the insertion of a rod by means of which the implement can be placed in a tube.

9. A flanging tool or implement comprising 1 5 a compact integral body of the desired shape provided with a teat or projection on its lower face, a punch-receiving face on its upper side, and having a hole in one side thereof adapted for the insertion of a rod by means of which 20 the implement can be placed in a tube.

In testimony whereof I, the said J AMES P. SNEDDON, have hereunto set my hand.

JAMES P. SNEDDON.

Witnesses:

WALTER S. LUCAS, J. (J. FRANK. 

